Valve-spring compressor and holder



C. M. SALSGlVER.

VALVE SPRING COMPRESSOR AND HOLDER. APPLICATION FILEDI'FEB. 14, I921.

l,425,796. Patented Aug. 15, 192 2, 4

I 64 46 JQ zi zur in J 1'.

CLYDE M. SALSGIVER, OE HIGHLAND PARK, MICHIGAN.

VALVE-SPRING ooirrnnsson Ann HOLDER.

Application filed. February 14, 1921. Serial No. 444,629. I

To all whom it may concern Be it-known that I, CLYDE M. SALSGIVER, a citizen of the United States, residing at Highland Park, in the county of Wayne and State of Michigan, have invented anew and useful l alve-Spring Compressor and Holder, of which the following is a specification.

This invention relates to valve spring compressors and holders.

It is the object of the invention to facilitatc and expedite the mounting upon the stem of the intake and exhaust valves of an internal combustion engine, of the springs for holding such valves to their seats.

In attaining this object the invention contemplates the provision of a tool by means of which one of said springs may be subjected to such compression as will readily adapt it to fit within. the required space, said tool then to be used as a holder for the I spring while mounting the latter upon its A preferred embodiment of the invention is hereinafter described and is illustrated in. the accompanying drawing, wherein:

Fi 1 is a plan viewfof the tool showing a valve spring engaged thereby andready to be compressed.

Fig. 2 a side view of the tool showing it engaging a spring which has been compressed and shiftedtransversely of the tool while held under compression, there being further shown a valve stem upon which said soring is being mounted by said tool.

Fig. 3 is a cross-section of the tool taken upon line 3-3 of Fig. 1.

In these views the reference character 1 designates an approximately U -shaped frame having its ends bifurcated as indicated at 2, and having pins 3 mounted in the fur-cations and pintles 4: pivotally engaging said pins between the furcations. The pintles 4; project approximatelytoward each other and a terminally hooked arm 5 is centrally pivoted upon each pintle. 6 is a disk-shaped spring abutment having a diametrically opposed pair of lugs 7 which are slotted as indicated at 8 to engage opposed ribs 9 longitudinally extending upon said frame. For reasons hereinafter made clear, it is desirable to offset said lugs toward the closed end of the frame 1, as is best shown in Fig. 1. Said member 6 is mounted loosely upon an unthreaded end portion of a screw 10 passing through a threaded opening centrally formed inthe closed end of'the frame 1 and having a handle 11 fast upon its outer end. Thus when said screw is turned by means of its handle, the spring abutment 6 is shifted longitudinally ofqthe too, being guided and held from rotation 1 during such movement by lugs 7 with the ribs 9. I 4

In the use of the described tool the'abut ment 6 is first shifted by means of thescrew 1O sufficicntly toward the closed end of the frame to permit a valve spring 12 tobe engaged between said abutment and the'hooks 13 upon the outer ends of the arms 5, said arms being arranged at an inclination, as shown in Fig. 1. The screw 10 is then turned to shift said abutment toward said arms,

engagement of the compressing the spring. As the stress in said spring increases, the arms 5 swing correspondingly toward'the horizontal engaging the hooks 14k upon their inner ends with the springs. Said hooks, however, slip over the coils of the spring until thenecessary compression of the latter has been produced.

The slots 8 in the abutment 6 extend in: wardlysufiiciently to accommodate the hooks 1 1 so that said hooks ma engage the end con of the spimg. Offsettmgthe lugs 7, as

shown in Fig. 1, prevents sald lugs offering any obstacle to inward swinging of the hooks 141:. The hooks 13 may be somewhat longer than the hooks 14: so that they may not disengage from the spring when the arms 5 assume-a horizontal position; After the respective ends of the spring have been engaged by the hooks, the abutment 6 is retracted and the spring and arms 5 are turned as a unit upon the axis established by the pintles 4 to the position shown in Fig. 2, transverse to the frame 1. In this position the tool forms a convenient holder for the spring while the latter is being engaged with a valve stem 15, as is illustrated in Fig. 2. Then the spring is properly mounted upon the stem, a sharp pull upon the tool is} sufficient to free the latter from the spring.

Said tool decreases both the time and effort requisite to assemble the valve springs of an engine in their positions of use.

What I claim is I 1. A valve spring compressor and holder comprising a frame, a terminally hooked arm intermediately pivoted upon said frame, a spring abutment mounted upon said frame and slidable to and from said arm, a spring abutment paired with the slidable abutment being formed by one of the terminal hooks of said arm, and the other hook of the arm being engageable with the spring when the latter is under a predetermined compression, and means carried by the frame for actuating said slidable abutment toward said arm.

2. A valve spring compressor and holder, comprising a frame, a terminally hooked arm intermediately pivoted upon said .frame a sarin abutment mounted upon said frame and slidable to and from said arm, a spring abutment paired with the slidable abutment being formed by one of the terminal hooks of said arm, and the other hook of the arm being engageable with the spring when the latter is under a predetermined compression, a screw engaging a threaded opening in said frame and loosely engaging said slidingabutment to actuate the same, and a handle upon.- said screw.

3. A. valve spring compressor and holder, comprising a frame, a terminally hooked arm intermediately pivoted upon said frame, and adapted to swing about transverse a-Xes, a springabutment mounted upon said frame and slidable to and from said arm, one of the hooks of said arm forming a spring abutment paired with said sliding abutment, the other hook of said arm being engageable with said spring through swinging of the arm about one of its pivotal axes when the spring is under a predetermined compression, the spring and arm being adapted to swing as a unit about the other axis of the arm when both hooks of the arm have been established as abutments for the spring, and means carried by said frame for actuating said sliding abutment.

4. A valve spring compressor and holder comprising a substantially U-shaped frame, a pair of terminally hooked arms respectively intermediately pivoted in opposed relation upon said frame at the open end hea ing opposed ribs upon its parallel P01.

tions, pins pivoted upon the open end of the frame at opposite sides thereof adapted to swing substantially in the plane of said frame, a pair of terminally hooked arms respectively intermediately pivoted upon said pins, a spring abutment slidably engaging said ribs, the hooks upon the outer ends of said arms forming; a co-acting abutment, the hooks at both ends of said arms eo-acting to form abutments for said spring when the latter is sufiiciently compressed, and means carried by the frame for actuating said sliding abutment, the spring when en ganged by both hooks of said arms being angularly adjustable as unit with said arms about the axis established b* said )lDS at a right angle to said frame.

6. A valve spring holder and compressor comprising an elongated frame, means pivotally carried by said frame for holding a spring;- compressed, said means being ad just-able about its pivotal axis to dispose an engaged spring transversely of the frame, and means carried by the frame for compressing a spring into engagement with said holding means.

In testimony whereof I sign this specification.

CLYDE M. SALSGIVER. 

